Irrigation apparatus
USRE31838E · kind E · reissue
4Cited by
50References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1980 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Sep 19, 2000 |
Classification
- Technology area (CPC —)General
Abstract
Self-propelled irrigation apparatus for watering non-circular areas includes a main arm assembly pivoted at one end and supported at intervals by self-propelled support towers. An extension arm assembly is mounted on self-propelled support towers and has one end pivotally connected to the free end of the main arm assembly for irrigating portions of the field outside the circular area traversed by the main arm. Electrical control means are provided to rotate the extension arm assembly relative to the main arm assembly as the latter rotates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.